The opened link is used to join the two ends of the chain.

这个开口环是用来连接链条两头的。

《柯林斯英汉双解大词典》

When the two ends of the tunnel met in the middle they were only a few inches out.

隧道两端在中间相接时，只有几英寸的误差。

《柯林斯英汉双解大词典》

It is mainly composed of a steel rectangular parallelepiped and two steel cylinders of the same diameter fixed at its two ends.

它主要由一钢制长方体和固定在其两端的两个相同直径的钢制圆柱体组成。

youdao

The rest of the businesses owners fall somewhere between those two ends of the spectrum.

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There are two ends of the spectrum when it comes to being a working mom.

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Antiques Roadshow and The X Factor are at two ends of the spectrum - hence you get massive audiences.

BBC: Sunday night TV ratings highest on record